The image shown is a photocopy of thee actual police sketch used in the series. (As seen below the original is folded.) The original prop has sold for thousands of dollars in the past and is now owned by a well known David Lynch fan.

High quality first generation reproductions printed on thick textured paper were made by the original owner and can be found occasionally. While obviously not a valuable as the original prop, they are still hard to find and very nicely done.

Below is an image of the original sketch as being shown in the episode.